The crossword solution for the term 'Do Knotty Things?' is 'TIE'. This is a reference to the phrase 'TIE knots', which is an activity that involves creating a knot in a rope or string. Knot tying is a skill that has been used for centuries, and is still used today for a variety of purposes such as fishing, sailing, and camping. Knots can also be used for decorative purposes, such as in macrame or jewelry making.